perl5.000 patch.0m: [various fixes, hint file updates and documentation]

This is my patch  patch.0m  for perl5.000.    
This patch fixes all remaining problems that I am aware of, and for
which I have a solution.  It also updates some hint files and
documentation. 

Here's what's new:

Configure
        Protect against spaces in uname -m output (unicos).
        Look in <stdlib.h> for malloctype and freetype.
        Check if user has void free() or int free().
        Look in linux/signal.h for signal names.

MANIFEST
MANIFEST.new
        Two new hint files:  cxux.sh and PowerUNIX.sh.
        Sorted.

README
        Indicate what gets installed and where it usually goes.
    Thanks to Hallvard B. Furuseth <h.b.furuseth@usit.uio.no>
    for suggesting this.

U/Myinit.U
        Update extliblist comment.

U/dist3_051.pat
    This file contains patches to dist 3 (PL 51) that I used to generate
    Configure for perl.
  
U/mallocsrc.U
        Look in <stdlib.h> for malloctype and freetype.
        Check if user has void free() or int free().
        
config_h.SH
config.H
        Add Free_t to handle void free() vs. int free().

ext/DynaLoader/README
        Updated comment.

ext/POSIX/POSIX.pm
        creat() has 2 arguments, not 3 (thanks, Paul).

ext/POSIX/POSIX.xs
        Fix return type of lseek.

ext/SDBM_File/sdbm/sdbm.h
        Add I_STDLIB guard on #include <stdlib.h>

ext/util/extliblist
        Add note indicating this is obsolete.  Don't remove it because
    people might be using it for their own private extensions.

hints/PowerUNIX.sh
hints/cxux.sh
        New files.  Written by Tom.Horsley@mail.hcsc.com

hints/linux.sh
        Simplified.

lib/ExtUtils/MakeMaker.pm
        Typo fixed, only affected aix?

malloc.c
        Allow for possible int free().

perl.h
pp_sys.c
util.c
        If the user is not using vfork, move the #define vfork fork
    util after various #include files.  Since vfork() and fork() might
    have different prototypes, the #define could cause a conflict in
    system header files.  (Reported for 386bsd.)

Makefile.SH
        make realclean will remove h2xs and makeaperl (but leave behind
        the .SH versions, of course).

5 files changed, 8 insertions, 4 deletions

diff --git a/ext/DynaLoader/README b/ext/DynaLoader/README
index 19dd8e72f6..c4602d3c39 100644
--- a/ext/DynaLoader/README
+++ b/ext/DynaLoader/README
@@ -46,7 +46,7 @@ After the initial implementation of a new DynaLoader dl_*.xs file
 you may need to edit or create ext/MODULE/MODULE.bs files to reflect
 the needs of your platform and linking software.
 
-Refer to DynaLoader.doc, ext/utils/mkbootstrap and any existing
+Refer to DynaLoader.doc, lib/ExtUtils/MakeMaker.pm and any existing
 ext/MODULE/MODULE.bs files for more information.
 
 Tim Bunce.
diff --git a/ext/POSIX/POSIX.pm b/ext/POSIX/POSIX.pm
index 4ccc5ce520..f59b4c393a 100644
--- a/ext/POSIX/POSIX.pm
+++ b/ext/POSIX/POSIX.pm
@@ -366,7 +366,7 @@ sub errno {
 
 sub creat {
     usage "creat(filename, mode)" if @_ != 2;
-    &open($_[0], &O_WRONLY | &O_CREAT | &O_TRUNC, $_[2]);
+    &open($_[0], &O_WRONLY | &O_CREAT | &O_TRUNC, $_[1]);
 }
 
 sub fcntl {
diff --git a/ext/POSIX/POSIX.xs b/ext/POSIX/POSIX.xs
index 1a900f08ea..fbd21c894b 100644
--- a/ext/POSIX/POSIX.xs
+++ b/ext/POSIX/POSIX.xs
@@ -2841,7 +2841,7 @@ dup2(fd1, fd2)
 	int		fd1
 	int		fd2
 
-SysRet
+SysRetLong
 lseek(fd, offset, whence)
 	int		fd
 	Off_t		offset
diff --git a/ext/SDBM_File/sdbm/sdbm.h b/ext/SDBM_File/sdbm/sdbm.h
index 6f54bd0502..4d6c844890 100644
--- a/ext/SDBM_File/sdbm/sdbm.h
+++ b/ext/SDBM_File/sdbm/sdbm.h
@@ -155,7 +155,7 @@ extern long sdbm_hash proto((char *, int));
 #endif
 
 /* Use all the "standard" definitions? */
-#ifdef STANDARD_C
+#if defined(STANDARD_C) && defined(I_STDLIB)
 #   include <stdlib.h>
 #endif /* STANDARD_C */
 
diff --git a/ext/util/extliblist b/ext/util/extliblist
index 2b8938fa4d..2351ddfd0e 100755
--- a/ext/util/extliblist
+++ b/ext/util/extliblist
@@ -15,6 +15,10 @@ esac
 :
 : Author:  Andy Dougherty    doughera@lafcol.lafayette.edu
 :
+: This utility was only used by the old Makefile.SH extension
+: mechanism.  It is now obsolete and may be removed in a future
+: release.
+:
 : This utility takes a list of libraries in the form
 : -llib1 -llib2 -llib3
 : and prints out lines suitable for inclusion in an extension